dma: mv_xor: add missing free_irq() call

Even though the driver cannot be unloaded at the moment, it is still
good to properly free the IRQ handlers in the channel removal function.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index ec741b4607e2..d48245c0b0b0 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1082,6 +1082,8 @@ static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan)
                 list_del(&chan->device_node);
         }
 
+        free_irq(mv_chan->irq, mv_chan);
+
         return 0;
 }
 
@@ -1101,6 +1103,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
         }
 
         mv_chan->idx = idx;
+        mv_chan->irq = irq;
 
         dma_dev = &mv_chan->dmadev;
 
@@ -1147,7 +1150,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
         /* clear errors before enabling interrupts */
         mv_xor_device_clear_err_status(mv_chan);
 
-        ret = devm_request_irq(&pdev->dev, irq,
+        ret = devm_request_irq(&pdev->dev, mv_chan->irq,
                                mv_xor_interrupt_handler,
                                0, dev_name(&pdev->dev), mv_chan);
         if (ret)